Guinevere experiment: Kinetic analysis of some reactivity measurement methods by deterministic and Monte Carlo codes

G. Bianchini, N. Burgio, M. Carta, V. Peluso, V. Fabrizio, L. Ricci

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

The GUINEVERE experiment (Generation of Uninterrupted Intense NEutrons at the lead VEnus PvEactor) is an experimental program in support of the ADS technology presently carried out at SCK•CEN in Mol (Belgium). In the experiment a modified lay-out of the original thermal VENUS critical facility is coupled to an accelerator, built by the French body CNRS in Grenoble, working in both continuous and pulsed mode and delivering 14 MeV neutrons by bombardment of deuterons on a tritium-target. The modified lay-out of the facility consists of a fast subcritical core made of 30% U235enriched metallic Uranium in a lead matrix. Several off-line and on-line reactivity measurement techniques will be investigated during the experimental campaign. This report is focused on the simulation by deterministic (ERANOS French code) and Monte Carlo (MCNPX US code) calculations of three reactivity measurement techniques, Slope (α-fitting), Area-ratio and Source-jerk, applied to a GUINEVERE subcritical configuration (namely SC1). The inferred reactivity, in dollar units, by the Area-ratio method shows an overall agreement between the two deterministic and Monte Carlo computational approaches, whereas the MCNPX Source-jerk results are affected by large uncertainties and allow only partial conclusions about the comparison. Finally, no particular spatial dependence of the results is observed in the case of the GUINEVERE SC1 subcritical configuration.
Original languageEnglish
Publication statusPublished - 2012
Externally publishedYes
EventInternational Conference on the Physics of Reactors 2012: Advances in Reactor Physics, PHYSOR 2012 - , United States
Duration: 1 Jan 2012 → …

Conference

ConferenceInternational Conference on the Physics of Reactors 2012: Advances in Reactor Physics, PHYSOR 2012
CountryUnited States
Period1/1/12 → …

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All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering

Cite this

Bianchini, G., Burgio, N., Carta, M., Peluso, V., Fabrizio, V., & Ricci, L. (2012). Guinevere experiment: Kinetic analysis of some reactivity measurement methods by deterministic and Monte Carlo codes. Paper presented at International Conference on the Physics of Reactors 2012: Advances in Reactor Physics, PHYSOR 2012, United States.